Ross 15" Homocentric brass lens barrel / aperture (no lens elements)

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For you consideration: One Ross brass lens barrel without the lens elements. This barrel states that is for a 15" Ross Homocentric lens.The aperture works well and is in great shape, clean and without oil on the blades. There are a few light dings to the first couple of threads where the front lens element would screw into, but I believe it's unlikely that these little digs would not allow original Ross lens elements to screw in okay.The thread diameter of both the front and rear lens element is right at 65mm. The barrel itself is 62mm from end to end. Maybe you can use this barrel for other lens elements, or experiment with it.No mounting flange is included, but the threads look to be right near 70mm in diameter.US shipping only. Please look a my other photo listings.